Dear Robert,
your idea for 'Universe Garen' is astro-nomical! I like the way you thought about his abilities and how they could be incorporated into the theme of Space Exploration, particularly the ultimate where a whole Satellite falls on your opponent. Did you have trouble deciding what to make his sword? We did when we tried to think of what to make Astro-nautilus' anchor.
The description of Garen's death animation is also really cool; that's a nice touch that really shows you're imagining the whole package. If you feel like taking your idea further you could describe a custom recall and some lines for Universe Garen to say. You could even describe a scene for the splash art to really round things out.
I'll show your idea to everyone on the skins team tomorrow, we can't promise that it will be made into a skin for the game but I'm sure they will really enjoy your work. Keep a hold of the original design too; I'm 32 now and I wish I still had some of my video game drawings from when I was younger.
Thanks so much for playing LoL and taking the time to come up with a skin concept. Your concept art made my day >:D
-Kindlejack